3-(1-Methylhydrazinyl)benzo[d]isothiazole 1,1-dioxide CAS 303064-94-0
| CAS No. | 303064-94-0 |
| Molecular Formula | C8H9N3O2S |
| Molecular Weight | 211.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 3-(1-Methylhydrazinyl)benzo[d]isothiazole 1,1-dioxide (CAS 303064-94-0), a certified reference material (molecular formula C8H9N3O2S, MW 211.24 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H9N3O2S, 3-(1-Methylhydrazinyl)benzo[d]isothiazole 1,1-dioxide contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 211.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 3-(1-Methylhydrazinyl)benzo[d]isothiazole 1,1-dioxide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H9N3O2S |
| Molecular Weight | 211.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methylhydrazinyl Standards
- 5-(1-Methylhydrazinyl)-2-phenylpyridazin-3(2H)-one (CAS 98767-49-8)
- 3-Methyl-6-(1-methylhydrazinyl)-2-(methylthio)pyrimidin-4(3H)-one (CAS 7401-93-6)
- 6-(1-Methylhydrazinyl)-3-propylpyrimidine-2,4(1H,3H)-dione (CAS 65150-49-4)
- 2-(1-Methylhydrazinyl)-4-(trifluoromethyl)pyrimidine (CAS 1372711-01-7)
- 2-(1-Methylhydrazinyl)-5-(trifluoromethyl)pyridine (CAS 163620-24-4)
- 2-(1-Methylhydrazinyl)-6-(trifluoromethyl)pyridine (CAS 163620-27-7)
- 2-(1-Methylhydrazinyl)-3-(trifluoromethyl)pyridine (CAS 175205-68-2)
- 2-(1-Methylhydrazinyl)-4-(trifluoromethyl)pyridine (CAS 208720-09-6)
Recommended Standards
- 2-Methyl-2H-benzo[e][1,2]thiazin-3(4H)-one 1,1-dioxide (CAS 29209-01-6)
- 3-(5-Methylthiophen-2-yl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid (CAS 937670-75-2)
- 2-Methyl-1h-benzo[d]imidazole-5-sulfonamide (CAS 57476-34-3)
- 3-(Aminomethyl)-2H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 5108-51-0)
- 1-(3,5-Dichlorophenyl)-3-Methylurea (CAS 38655-13-9)
- (4-Fluorophenyl)[2-(4-methylphenyl)cyclopropyl]methanone (CAS 338415-86-4)
- (4-Chlorophenyl)[4-(4-piperidinyloxy)phenyl]-methanone (CAS 946714-89-2)
- 2,4-Dibromo-6-fluorobenzoic acid (CAS 183065-69-2)
- Potassium (2-carbamoylphenyl)trifluoroborate (CAS 850623-70-0)
- Ethyl (1s,3s)-3-(hydroxymethyl)cyclobutane-1-carboxylate (CAS 27692-51-9)
- 1-(2-hydroxynaphthalen-1-yl)propan-1-one (CAS 33828-93-2)
- 2-Hydroxy-2-phosphono-3-(pyridin-3-yl)propanoic acid (CAS 152831-36-2)
- 2-Hydroxy-2-(1-methylcyclopropyl)acetic acid (CAS 2145878-19-7)
- Endo-Gly29-Tirzepatide (CAS CATO-CPTD788685)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com